n.runs-SA-2007.006 - PHProjekt 5.2.0 - Privilege escalation

n.runs AG
http://www.nruns.com/ security at nruns.com
n.runs-SA-2007.006 14-Mar-2007

Vendor: Mayflower GmbH, http://www.mayflower.de
Affected Products: PHProjekt 5.2.0
Vulnerability: Privilege escalation
Risk: HIGH

Vendor communication:

2006/12/31 initial notification of Mayflower
2007/01/02 Mayflower Response
2007/01/02 PGP keys exchange
2007/01/02 PoCs sent to Mayflower
2007/01/11 Mayflower confirmed the bugs
2007/01/30 Mayflower fixed the bugs and sends RC1
2007/01/30 n.runs informs Mayflower about a persisting XSS
vulnerability
2007/02/02 Mayflower confirmed the bug
2007/02/08 Mayflower fixed the bugs and sends RC2
2007/02/12 n.runs informs Mayflower about a persisting XSS
vulnerability
2007/02/15 Mayflower confirmed the bug
2007/02/20 Mayflower fixed the bug and sends RC3
2007/02/21 n.runs verifies RC3 and reported a possible flaw
within the new XSS protection library
2007/03/14 PHProjekt 5.2.1 available
2007/03/14 Coordinated disclosure

Overview:
Quoting http://www.phprojekt.com/features.php?&newlang=eng
"PHProjekt is a modular application for the coordination of group
activities and to share informations and document via the web.
Components of PHProjekt: Group calendar, project management, time card
system, file management, contact manager, mail client and many other
modules.
PHProjekt supports many protocols like ldap, xml/soap and webdav and
is available for 38 languages and 9 databases."

Description:
The vendor has been informed that every authenticated user can upload
any files, e.g., through the calendar or file management module.
With this privilege it is possible to upload PHP files with arbitrary
code, which can subsequently be instantly executed. This suggests a
privilege escalation is possible.

Solution:
The vulnerabilities were reported on Dec 31 2006 and an update has
been released on Mar 14 2007.

Credit:
Bugs found by Alexios Fakos of n.runs AG.

References:
http://www.nruns.com/security_advisory_phprojekt_privilege_escalation.php

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